...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Soil Dynamics and Earthquake Engineering >Porosity estimation of unsaturated soil using Brutsaert equation
【24h】

Porosity estimation of unsaturated soil using Brutsaert equation

机译：用Brutsaert方程估算非饱和土的孔隙率。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although the porosity is a crucial parameter for understanding the soil behavior under static and dynamic loading, estimating the porosity of unsaturated soil is difficult owing to the various input parameters required. The objective of this study is to suggest a technical method to obtain the level of porosity based on the elastic wave velocity in unsaturated soil. The Brutsaert model, which utilizes the theory of wave propagation, is applied to modify the proposed method in terms of the porosity of unsaturated soil. The soil compressional wave velocity is gathered through a seismic refraction survey, and the porosity distribution at different depths is estimated. A dynamic cone penetration test is applied to verify the converted porosity based on the compressional wave. The two porosities estimated through the wave propagation and penetration show similar trends. Furthermore, a special validation is performed to determine whether the energy dissipation can be ignored in the compressional wave propagations under this experiment condition. The results of this study indicate that the suggested technique is useful for obtaining the porosity in unsaturated soil.
机译：尽管孔隙度是理解静态和动态载荷下土壤行为的关键参数，但由于需要各种输入参数，因此很难估算非饱和土壤的孔隙度。这项研究的目的是提出一种基于非饱和土中弹性波速度获得孔隙度的技术方法。利用波传播理论的Brutsaert模型，根据非饱和土的孔隙率对提出的方法进行了修改。通过地震折射调查收集土壤压缩波速度，并估算不同深度的孔隙率分布。应用动态锥入度测试以基于压缩波验证转换后的孔隙度。通过波传播和穿透估计的两个孔隙率显示出相似的趋势。此外，在此实验条件下，将执行特殊的验证以确定在压缩波传播中是否可以忽略能量耗散。这项研究的结果表明，所提出的技术对于获得非饱和土壤的孔隙度是有用的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号